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Stockholders' Equity - Summary of Shares Purchased by Employees Under the Stock Purchase Plan (Detail) - $ / shares
shares in Thousands
6 Months Ended
Aug. 31, 2021
Feb. 28, 2021
Aug. 31, 2020
Feb. 29, 2020
Share-based Payment Arrangement [Abstract]        
Shares Purchased 39 51 50 47
Purchase Price $ 39.13 $ 30.29 $ 30.14 $ 29.27